Also popular news-wise — the presidential campaign. No surprise that relative stragglers like Dennis Kucinich or Duncan Hunter didn’t make it to the top 10. But should Obama’s edge make Clinton camp nervous?

As of September, Yahoo searches made up 23.7 percent of all searches on the Web, according to comScore research cited on SearchEngineWatch.com. Executing more than half of all searches, Google remains the most popular engine on the Web.

P.S. — Yahoo! also announced its top environmental, tech, and sports searches, among other categories (top in environment: “recycling”). Number one on the troubled star list? Britney Spears, of course.